สนองทวีพร ธ. (2019) “Human Resource Development Affecting The Performance of Teachers in Private Colleges in Bangkok Metropolitan Area”, Mahamakut Graduate School Journal, 15(2), pp. 89–100. Available at: https://so04.tci-thaijo.org/index.php/mgsj/article/view/177284 (Accessed: 5 May 2024).